Incoming call simulation issue

[mritzi]

I installed the package using direct link, and completed setup steps.
I clicked on 'Phone' icon on top right to simulate incoming call and when I tried to click on 'End', this is the error message I got just after the End button:

This page has an error. You might just need to refresh it. Action failed: c:connectedPanel$controller$endCall [cmp.get(...) is undefined] Failing descriptor: {c:connectedPanel$controller$endCall}

Attached Screenshot

[ZhangOugg]

#22 (comment)